Answer:
1.95
Step-by-step explanation:
Answer:
a) 
b) The should sample at least 293 small claims.
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so
, which means that the answer of question a is z = 1.645.
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.
(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?
They should sample at least n small claims, in which n is found when
. So







The should sample at least 293 small claims.
Answer:
75 minutes
Step-by-step explanation: 750 divided by 10 is 75
Answer:
109 :P
Step-by-step explanation:
Step-by-step explanation:
<em>Given </em>
<em>circumference </em><em>=</em><em> </em><em>1</em><em>2</em><em> </em><em>inch</em>
<em>π</em><em> </em><em>=</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em>
<em>radius </em><em>(</em><em>r) </em><em> </em><em>=</em><em> </em><em>?</em>
<em>We </em><em>know </em>
<em>circumference </em><em>=</em><em> </em><em>2</em><em>π</em><em>r </em>
<em>1</em><em>2</em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>*</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em><em> </em><em>*</em><em> </em><em>r</em>
<em>r </em><em>=</em><em> </em><em>1</em><em>2</em><em> </em><em>/</em><em> </em><em>6</em><em>.</em><em>2</em><em>8</em>
<em>Therefore </em><em> </em><em>r </em><em>=</em><em> </em><em>1</em><em>.</em><em>9</em><em>1</em><em> </em><em>inch</em>